I downloaded packs 3 and 4, and now cannot play any advanced multi-player games, or any of the standard games except ground war?  The system shows, no available games.  I am basically left with only ground war, and  3x3 face off.  My next issue is I went from games where I was competitive to now, the only games I am put into have players with insane capabilities and are some of the top players on MW3, my rank is 3,000,000 plus, why are the only games I am getting with players in the sub 500,000 rank?  re-spawning, and getting blown up, shot, or stabbed before I can even move sucks.  Any advice is appreciated.